Print Image Acquisition TRIZ Cases

A readout integrated circuit discharges output terminals via a current source, reducing signal settling time in large fingerprint sensing panels.

Replacing capacitive sensors with optical detection eliminates parasitic capacitance interference, maintaining high accuracy in thin display panels.

Multi-subarray sensing shifts sub-images to resolve Moire patterns from display structures, enabling accurate identification.

An edge sensor detects reflected light from sequential display pixel illumination, reducing device complexity while maintaining high measurement precision.

Integrating ultrasonic fingerprint sensors within display substrate inter-pixel portions simplifies manufacturing and reduces device complexity.

A fingerprint sensing control circuit scans a finger press area in multiple directions during different periods to accelerate reading operations.

Dynamic lighting patterns compensate for external interference and saturation, improving fingerprint image quality without increasing sensor bulk.

Segmented electrodes reduce peak current and power consumption while maintaining large active areas on flexible displays.

A fingerprint identification method uses distinct bright and dark detection zones on a display component to generate separate signals for accurate finger recognition.

Segmented sensing blocks with sequential initiation signals improve capacitance measurement precision by minimizing ridge valley blur effects.

Segmented black matrix and embedded collimator lens direct reflected light to sensors, resolving shading effects that block optical signals.

Segmenting pixel units into sequential emission groups simplifies the optical path and reduces signal noise, improving fingerprint identification accuracy.

A light guide device with a tilted side wall directs emitted light to the center of the image capture area.

Segmenting detection circuits and sharing signal lines reduces noise interference and line complexity in optical fingerprint recognition.

Trench formation in the active stack aligns GaN LEDs with photo-detectors, resolving precision-complexity trade-offs for compact sensors.

A fingerprint sensor antenna uses coil-on-module technology to enable inductive coupling with a booster antenna.

Segmented sensing conductive layers block external light while allowing sub-pixel reflection for accurate fingerprint detection in displays.

A fingerprint sensor uses total reflection to capture light intensity for fraud detection.

A fingerprint sensing system adjusts supply power modes to optimize energy usage.

A birefringent crystal refracts incident light through a lens to an optical fingerprint chip, replacing traditional filters with an anisotropic medium.

A fingerprint enrollment method uses dynamic sensing to stop acquisition once M qualified images or N touches are reached.

Spacer maintains consistent air gap between optical sensor and OLED display to prevent Moire effect while enabling seamless fingerprint recognition.

A dual optical and capacitive sensor detects input objects using a photosensor and capacitive electrodes.

Shield regions in the trace area block noise interference, improving fingerprint recognition quality while maintaining touch sensing performance.

A biometric authentication device synchronizes segmented illumination with pixel groups to acquire clean signals.

A nonopaque cover plate reflects light from an array of light sources onto discrete photosensors to expand the imaging area.

Partition walls separate sensor pixels from light-emitting areas to reduce leakage current and improve biometric sensing accuracy.

Dynamic mode switching maintains ultrasonic fingerprint recognition underwater, resolving reliability and adaptability contradictions.

Calibration tracks measure sheet resistance to compensate for manufacturing tolerances, ensuring consistent impedance readings for authentic finger detection.

A non-contact 3D fingerprint capturing apparatus uses a positioning module to cast light on a finger object and capture images from multiple directions.

An irregular light absorbing layer reduces reflections and cross-talk while maintaining high optical density in angular light control films.

A multimodal biometric sensor captures fingerprint and finger vein images to establish user identity through combined imaging.

Integrating touch and fingerprint electrodes reduces device complexity while enabling single-operation enrollment across a large area.

Auto-baseline tracking adjusts signal conditioning parameters to compensate for environmental drift in fingerprint sensors.

Integrating contact sensors within display panels resolves the volume increase from separate fingerprint modules while maintaining high aperture ratios.